JPEG signal to noise ratio

These results show that the Sigma DP1 Merrill's JPEG files have a low signal to noise ratio when compared to those from the with the Panasonic LX7, Fuji X100 and Olympus XZ-2, coming in just above the Olympus at ISO 100-200, and bottom of the pile at the higher sensitivities that it was able to reach.

Raw signal to noise ratio

The signal to noise ratios of the TIFF images (after conversion from raw) from the Sigma DP1 Merrill are slightly stronger, beating the Panasonic LX7 throughout its whole sensitivity range, and the Olympus XZ-2 at ISO 100-200. It produced weaker results than the Fuji X100 at every ISO setting, however.

JPEG dynamic range

For dynamic range in its JPEG images, the Sigma DP1 Merrill sits at the bottom of the pile, with the Olympus XZ-2 coming out on top, followed by the Panasonic LX7, then the Fuji X100.

Raw dynamic range

This chart indicates that TIFF images (after conversion from raw) from the Sigma DP1 Merrill are second-strongest at ISO 100-400, sitting just below the Olympus XZ-2 and above the Panasonic LX7 and Fuji X100. It comes out top at ISO 800, the top of its measurable range.